Assessment of carbon stocks

Land-use analysis at the start of the programme

Partnership: IOGA (Institute and Observatory og Geophysics of Antananarivo)

Objective: Treatment and analysis of Very High Definition images provided by Spot Image's initiative Planète-Action to precisely analyze and assess land-use patterns and the different types of forests in the project area (as the highest quantities of carbone are stored in the forests).
 / ©: GoodPlanet / R. Vaudry
Spiny forests are particularly challenging for teledetection, because they often consist of low trees with light foliage, which can be confused with bare soil.
© GoodPlanet / R. Vaudry

Assessment of the above-ground biomass

The largest amount of forest carbone is stored in the above-ground biomass (stems, branches, leaves). This is why we are putting a lot of efforts on this topic. We have chosen a state-of-the-art methodology for which two complementary stages need to be completed:

  • A first assessment via the LiDAR (Light Detection and Ranging) technology 
Partnership: Carnegie Airborne Observatory (Stanford University)

Objective: Provide a very precise measurement of the height of the forest canopy and understory in the sites of the project.

Video: LiDAR data collected in Andapa-Bealanana



  • The development of allometric models adapted to Malagasy forests
Partnerships:

1. Cirad (Centre de coopération internationale en recherche agronomique pour le développement)

2. ESSA-Forêts (University of Agricultural Sciences of Madagascar)

Objective: Matching LiDAR data with information gathered through ground surveys and analysis in laboratory to estimate with accuracy the quantity of carbon stored in the above-ground biomass.
 / ©: GoodPlanet / R. Vaudry
Integral weighing of selected trees (branches and stems)
© GoodPlanet / R. Vaudry

Assessment of carbon stocks in litter and soil

Partnerships:

1. IRD (Institut de recherche pour le développement) - Eco and Soils Unit

2. LRI (Laboratoire des Radio-Isotopes) - University of Antananarivo

3. ESSA-Forêts (University of Agricultural Sciences of Madagascar)

Objective: infra-Red Spectrometric measurements on carbon stocks in both litter and soil in Fort-Dauphin and Andapa/Bealanana; and modeling of the evolution of these stocks under the effect of the rise of temperatures.

 / ©: WWF Canon / O. van Bogaert
Laboratory measurement of carbon stocks in litter and soil
© WWF Canon / O. van Bogaert

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